967
FNCA52 TJSJ 071930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST THU MAY 7 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-080800-
SOUTHEAST COASTAL PLAINS-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 10 10 0
TEMP (24H TREND) 71 (-3) 90 (+3) 71 90
RH % (24H TREND) 95 (+2) 51 (-13) 89 53
WIND 20FT/EARLY(MPH) E 10 E 14 E 11 E 18
WIND 20FT/LATE(MPH) NE 10 SE 14 NE 9 E 20
MIXING HGT(FT-AGL/MSL) 5320 5630
TRANSPORT WND (MPH) E 13 E 17
VENT RATE (KT-FT) 58520 84450
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-080800-
SOUTHERN HILLS-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 20 20 10
TEMP (24H TREND) 67 (-5) 87 (+4) 68 86
RH % (24H TREND) 99 (+4) 55 (-15) 95 59
WIND 20FT/EARLY(MPH) E 10 E 11 NE 11 E 13
WIND 20FT/LATE(MPH) NE 9 SE 11 NE 11 E 14
MIXING HGT(FT-AGL/MSL) 5740 6310
TRANSPORT WND (MPH) E 10 E 15
VENT RATE (KT-FT) 51660 82030
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-080800-
NORTH COASTAL PLAINS-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 20 10
TEMP (24H TREND) 71 (-3) 90 (+2) 72 90
RH % (24H TREND) 98 (+2) 53 (-12) 93 56
WIND 20FT/EARLY(MPH) E 12 E 13 E 16 E 16
WIND 20FT/LATE(MPH) E 11 NE 17 E 13 E 20
MIXING HGT(FT-AGL/MSL) 4790 5370
TRANSPORT WND (MPH) E 13 E 17
VENT RATE (KT-FT) 52690 80550
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-080800-
NORTHERN HILLS-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 20 20 30
TEMP (24H TREND) 69 (-2) 88 (+2) 69 88
RH % (24H TREND) 99 (+2) 55 (-10) 94 58
WIND 20FT/EARLY(MPH) E 9 E 11 E 12 E 14
WIND 20FT/LATE(MPH) E 10 NE 13 E 11 E 18
MIXING HGT(FT-AGL/MSL) 5760 6150
TRANSPORT WND (MPH) E 8 E 14
VENT RATE (KT-FT) 40320 73800
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-080800-
WEST COAST-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 40 30
TEMP (24H TREND) 71 (-2) 91 (+2) 71 90
RH % (24H TREND) 100 (+3) 55 (-10) 95 57
WIND 20FT/EARLY(MPH) E 11 E 13 E 16 E 13
WIND 20FT/LATE(MPH) E 11 NE 12 E 16 E 14
MIXING HGT(FT-AGL/MSL) 4790 5440
TRANSPORT WND (MPH) SE 7 E 9
VENT RATE (KT-FT) 28740 43520
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-080800-
EASTERN INTERIOR-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 20 20
TEMP (24H TREND) 69 (-4) 88 (+3) 69 87
RH % (24H TREND) 99 (+2) 54 (-12) 95 58
WIND 20FT/EARLY(MPH) E 10 E 11 E 11 E 13
WIND 20FT/LATE(MPH) E 10 E 11 E 11 E 13
MIXING HGT(FT-AGL/MSL) 6150 6430
TRANSPORT WND (MPH) E 12 E 15
VENT RATE (KT-FT) 61500 83590
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-080800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 20 30
TEMP (24H TREND) 67 (-4) 83 (+4) 68 82
RH % (24H TREND) 100 (+1) 60 (-14) 99 64
WIND 20FT/EARLY(MPH) E 8 E 10 E 8 E 12
WIND 20FT/LATE(MPH) E 8 E 10 E 8 E 12
MIXING HGT(FT-AGL/MSL) 4850 5110
TRANSPORT WND (MPH) E 13 E 15
VENT RATE (KT-FT) 53350 66430
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-080800-
CENTRAL MOUNTAIN RANGE-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 40 30 30
TEMP (24H TREND) 65 (-4) 86 (+5) 66 86
RH % (24H TREND) 100 (+3) 57 (-13) 96 60
WIND 20FT/EARLY(MPH) E 8 E 10 E 10 E 9
WIND 20FT/LATE(MPH) E 9 E 8 E 10 E 11
MIXING HGT(FT-AGL/MSL) 7200 6940
TRANSPORT WND (MPH) NE 6 E 12
VENT RATE (KT-FT) 36000 69400
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-080800-
CAYEY MOUNTAIN RANGE-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 20 20
TEMP (24H TREND) 68 (-3) 83 (+3) 68 82
RH % (24H TREND) 100 (+1) 59 (-14) 97 64
WIND 20FT/EARLY(MPH) E 8 E 10 NE 9 E 12
WIND 20FT/LATE(MPH) NE 8 E 10 NE 8 E 13
MIXING HGT(FT-AGL/MSL) 5500 5610
TRANSPORT WND (MPH) E 13 E 16
VENT RATE (KT-FT) 60500 78540
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-080800-
VIEQUES-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 20 30
TEMP (24H TREND) 74 (-2) 86 (0) 74 86
RH % (24H TREND) 89 (-3) 57 (-6) 89 60
WIND 20FT/EARLY(MPH) E 12 E 12 E 14 E 16
WIND 20FT/LATE(MPH) E 11 E 10 E 14 E 14
MIXING HGT(FT-AGL/MSL) 4090 4000
TRANSPORT WND (MPH) E 15 E 17
VENT RATE (KT-FT) 53170 60000
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-080800-
CULEBRA-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 20 20 20
TEMP (24H TREND) 75 (-2) 89 (+2) 75 89
RH % (24H TREND) 87 (-2) 56 (-8) 88 57
WIND 20FT/EARLY(MPH) E 12 E 12 E 14 E 16
WIND 20FT/LATE(MPH) E 11 E 10 E 14 E 14
MIXING HGT(FT-AGL/MSL) 4080 4050
TRANSPORT WND (MPH) E 16 E 18
VENT RATE (KT-FT) 57120 64800
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-080800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 40 10
TEMP (24H TREND) 71 (-4) 91 (+2) 72 91
RH % (24H TREND) 98 (+6) 50 (-11) 90 53
WIND 20FT/EARLY(MPH) E 10 E 17 E 12 E 17
WIND 20FT/LATE(MPH) E 10 SE 18 E 12 SE 20
MIXING HGT(FT-AGL/MSL) 4780 5780
TRANSPORT WND (MPH) E 14 E 14
VENT RATE (KT-FT) 57360 69360
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-080800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 10 20 10
TEMP (24H TREND) 74 (-3) 86 (+1) 74 86
RH % (24H TREND) 88 (0) 58 (-7) 89 60
WIND 20FT/EARLY(MPH) E 11 E 13 E 14 E 17
WIND 20FT/LATE(MPH) E 12 E 11 E 14 E 14
MIXING HGT(FT-AGL/MSL) 3950 4080
TRANSPORT WND (MPH) E 15 E 20
VENT RATE (KT-FT) 51350 69360
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-080800-
ST CROIX-
330 PM AST THU MAY 7 2026
TONIGHT FRI FRI NIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 20 10
TEMP (24H TREND) 73 (-4) 87 (+1) 73 87
RH % (24H TREND) 90 (-1) 59 (-7) 91 61
WIND 20FT/EARLY(MPH) E 13 E 12 E 13 E 16
WIND 20FT/LATE(MPH) E 12 E 12 E 14 E 14
MIXING HGT(FT-AGL/MSL) 4750 4670
TRANSPORT WND (MPH) E 16 E 17
VENT RATE (KT-FT) 66500 70050
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page